Determination of perflurooctane sulfonates and pentadecafluorooctanoic acid residues in textiles goods by LC-MS-MS method

The perflurooctane sulfonates(PFOS) and pentadecafluorooctanoic acid(PFOA) in textiles are extracted with touluene and methanol by Accelarated Solvent Extractor(ASE).The extracted liquid was concentrated,purified film filtered,volume specified,and then it was determined by LC-MS-MS.The determination method for PFOS and PFOA in textiles by LC-MS-MS is developed.The detection limit,linear range,and recovery rate of this method,for PFOS,are 1.0μg/kg、3.0-300μg/kg and 82.35%-105.60% respectively;and for PFOA,are 0.5μg/kg、1.5-200μg/kg and 85.17%-107.78% respectively.